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GPT-5 nano

Deprecated

Snapshot gpt-5-nano-2025-08-07 shuts down 2026-12-11, replaced by gpt-5.4-nano. Context/max-output assumed same as gpt-5 family. Price FILLED 2026-08-08 from developers.openai.com/api/docs/pricing (Standard tier), which still lists deprecated models: $0.05 in / $0.005 cached / $0.4 out. The prior note claimed the price was "not on the current pricing summary" — that was a claim about which page had been opened, not about the provider.

GPT-5 nano by OpenAI costs $0.05 per 1M input tokens and $0.4 per 1M output tokens ($0.138/1M blended), with a 400K (400.000-token) context window. It is deprecated, shutting down 11 Dec 2026; the recommended replacement is GPT-5.4 nano.

Last verified: 13 Aug 2026 · sourced from official provider documentation

Lifecycle warning

This model is deprecated. Scheduled shutdown: 11 Dec 2026. Recommended migration: GPT-5.4 nano.

Read the GPT-5 nano migration guide → replacement & cheapest alternatives

Provider
OpenAI
Status
Deprecated
Input price
$0.05 / 1M tokens
Output price
$0.4 / 1M tokens
Cached input
$0.005 / 1M tokens
Blended price
$0.138 / 1M tokens
Context window
400.000 tokens (400K)
Max output
128.000 tokens
Modality
text, image
Open weights
No — API only
Knowledge cutoff
—
Released
7 Aug 2025
API string
gpt-5-nano-2025-08-07

Source: OpenAI official documentation ↗

See also

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FAQ

GPT-5 nano — questions & answers

How much does GPT-5 nano cost?

GPT-5 nano is priced at $0.05 per 1M input tokens and $0.4 per 1M output tokens ($0.138/1M blended at a 3:1 input-to-output ratio), with cached input at $0.005 per 1M tokens.

What is the context window of GPT-5 nano?

GPT-5 nano has a 400.000-token context window (400K), with up to 128.000 output tokens per request.

Is GPT-5 nano being deprecated or retired?

GPT-5 nano is deprecated. Its scheduled shutdown date is 11 Dec 2026. The recommended migration is GPT-5.4 nano.

Does GPT-5 nano support image or vision input?

Yes — GPT-5 nano accepts image input. Listed modalities: text, image.

Can I self-host GPT-5 nano?

No — GPT-5 nano is proprietary. Its weights are not publicly released, so it is available only through OpenAI's API (or hosted partners), not for self-hosting.

What is the API model string for GPT-5 nano?

The API model identifier for GPT-5 nano is "gpt-5-nano-2025-08-07" when calling OpenAI's API.